Shockproof safe bolt

Abstract

The present invention relates to a safer shockproof safe bolt. The shockproof safe bolt includes a shell and a bolt head, and is characterized in that: the bolt head is rotatably mounted on the shell, the shell has a bolt outlet for the bolt head to come out, and the bolt head is connected to a torsion spring for driving the bolt head to reset; a longitudinally movable limiting block is provided in the shell, the limiting block has a state of limiting the rotation of the bolt head, one end of the limiting block close to the bolt head has a guiding inclined surface, and the other end of the limiting block acts on the reset spring. The shockproof safe bolt drives the bolt head to be bolted by a motor, the motor structure is stable, not easily affected by vibration, and emergency unlocking can be achieved even if the motor fails.

Description

Technical Field

[0001] The invention relates to a lock bolt, in particular to a safe lock bolt. Background Art

[0002] At present, the fingerprint lock or password lock of general safes all use electromagnetic valves as the lock bolts. After the lock bolts the lock tongue, the door of the safe cannot be opened. However, the electromagnetic valve is easy to lose its function under strong vibration and cannot play the role of locking the lock tongue. Some thieves use this safety defect to steal. Therefore, the safety factor of safes using electromagnetic valves is low. The country has also issued new standards for locks, which cancel the use of electromagnetic valves as lock bolts for safes. Summary of the invention

[0003] In view of the deficiencies in the prior art, the present invention provides a safer shockproof safe bolt.

[0004] This shockproof safe lock bolt includes a shell and a bolt head, and is characterized in that: the bolt head is rotatably mounted on the shell, the shell has a bolt outlet for allowing the bolt head to come out, and the bolt head is connected to a torsion spring that drives the bolt head to reset; a longitudinally movable limiting block is provided in the shell, the limiting block has a state of limiting the rotation of the bolt head, the limiting block has a guiding inclined surface at one end close to the bolt head, the other end of the limiting block acts on a reset spring, a laterally movable locking block is provided on one side of the limiting block, the limiting block has a locking groove, and the locking block is drivingly connected to a motor that drives the locking block into the locking groove.

[0005] A connecting rod is connected between the locking block and the gasket, and a long groove is provided in the shell. The locking block, the connecting rod and the gasket are located in the long groove. A movable sleeve is sleeved on the connecting rod, a first spring is provided between the movable sleeve and the locking block, a second spring is provided between the movable sleeve and the gasket, and the motor is transmission-connected with the movable sleeve; a longitudinally movable emergency part is provided in the shell, and an emergency part inclined surface is provided at one end of the emergency part relative to the locking block, and the other end of the emergency part acts on a return spring, and the locking block has a locking block inclined surface opposite to the emergency part inclined surface.

[0006] The movable sleeve is provided with an extension block, the extension block has a tooth surface, the output shaft of the motor is connected with a gear, and the gear is meshed with the tooth surface of the extension block.

[0007] The bolt head is semicircular, and the center of the bolt head is hinged on the shell.

[0008] According to the shockproof safe lock bolt provided by the present invention, the bolt is raised by driving the bolt head through a motor, the motor structure is stable and not easily affected by vibration, and emergency unlocking can be achieved even if the motor fails. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Figure 1 It is a structural schematic diagram of the present invention;

[0010] Figure 2 Schematic diagram of the bolt head latching the lock tongue and the bolt head not latching the lock tongue. DETAILED DESCRIPTION

[0011] like Figure 1 The shockproof safe lock bolt comprises a housing 1 and a bolt head 2. The bolt head 2 is rotatably mounted on the housing 1. The housing 1 has a bolt outlet for the bolt head 2 to come out. The bolt head 2 is connected to a torsion spring 20 for driving the bolt head 2 to return to its original position. A longitudinally movable limiting block 3 is provided in the housing 1 ("longitudinal" refers to the longitudinal direction). Figure 1 In the longitudinal direction, the same below), the limiting block 3 has a state of limiting the rotation of the bolt head 2, and the end of the limiting block 3 close to the bolt head 2 has a guiding inclined surface 31, and the other end of the limiting block 3 acts on the reset spring 30, and a laterally movable locking block 4 is provided on one side of the limiting block 3, the limiting block 3 has a locking groove 32, and the locking block 4 is transmission-connected to the motor 10 that drives the locking block 4 to enter the locking groove 32.

[0012] When the lock tongue A of the safe is in the locked state, the lock block 4 is stuck in the lock groove 32 of the limiting block 3, so that the limiting block 3 cannot move. At this time, the limiting block 3 blocks the bolt head 2, and the bolt head 2 cannot rotate. The bolt head 2 is partially exposed from the bolt outlet of the housing 1, so that the bolt head 2 locks the lock tongue A. Figure 2 As shown, the door of the safe cannot be opened. When the safe is unlocked by fingerprint or password, the motor 10 drives the lock block 4 out of the lock slot 32 of the limiting block 3. When the door handle is turned, the lock tongue acts on the bolt head 2 and drives the bolt head 2 to rotate. Since the limiting block 3 has a guide slope 31 at one end close to the bolt head 2 and the limiting block 3 can move longitudinally, under the action of the bolt head 2, the limiting block 31 moves downward. As the bolt head 2 rotates (rotates in the counterclockwise direction), the bolt head 2 enters the housing 1 and no longer locks the lock tongue A. Figure 2 When the safe door is to be locked again, the safe door is closed, and the bolt head 2 comes out of the housing 1 again (rotates in the clockwise direction) under the action of the torsion spring 20, and the limiting block 3 moves upward under the action of the return spring 30 and blocks the bolt head 2 again, and the locking block 4 re-enters the locking groove 32 of the limiting block 3 under the drive of the motor 10.

[0013] The motor 10 can be driven to play an anti-vibration role, but the motor may also fail. In order to achieve emergency unlocking in the event of a failure of the motor 10, the present invention also has an emergency unlocking function, and the specific structure is as follows: a connecting rod 7 is connected between the lock block 4 and the gasket 6, a long slot 11 is provided in the housing 1, the lock block 4, the connecting rod 7 and the gasket 6 are located in the long slot 11 (the three can move laterally in the long slot 11), a movable sleeve 8 is sleeved on the connecting rod 7, a first spring 70 is provided between the movable sleeve 8 and the lock block 4, a second spring 71 is provided between the movable sleeve 8 and the gasket 6, and the motor 10 is connected to the movable sleeve 8 in a transmission manner; a longitudinally movable emergency part 9 is provided in the housing 1, and the emergency part 9 has an emergency part inclined surface 91 at one end relative to the lock block 4, and the other end of the emergency part 9 acts on the return spring 90, and the lock block 4 has a lock block inclined surface 41 opposite to the emergency part inclined surface 91.

[0014] The overall working principle is as follows: when the motor 10 works normally, the motor 10 drives the movable sleeve 8 to move to the left, the movable sleeve 8 acts on the second spring 71, and the second spring 71 acts on the gasket 6, so that the locking block 4, the connecting rod 7 and the gasket 6 move to the left together in the long groove 11, so that the locking block 4 no longer locks the limiting block 3, and the door of the safe can be opened at this time; when the motor 10 drives the movable sleeve 8 to move to the right, similarly, under the action of the first spring 70, the locking block 4, the connecting rod 7 and the gasket 6 move to the right together in the long groove 1, so that the locking block 4 enters the locking groove 32 of the limiting block 3, thereby locking the limiting block 3, and the door of the safe cannot be opened at this time. When the motor fails, the emergency part 9 is pulled down (of course, the emergency part 9 is connected to the mechanical lock, and the key is inserted into the mechanical lock to rotate, thereby driving the emergency part 9 to move). Since the emergency part 9 has an emergency part inclined surface 91 at one end opposite to the lock block 4, and the lock block 4 has a lock block inclined surface 41 opposite to the emergency part inclined surface 91, through the interaction of the two inclined surfaces, the lock block 4 is pushed to move leftward (the movable sleeve 8 does not move), so that the lock block 4 comes out of the lock groove 32 of the limiting block 3, and the lock block 4 no longer locks the limiting block 3. Through this structure, even if the motor 10 fails and cannot drive the movable sleeve 8 to move left and right, the door of the safe can be opened in an emergency.

[0015] In order to make the motor 10 drive the movable sleeve 8 to move left and right, the movable sleeve 8 is provided with an extension block 80, the extension block 80 has a tooth surface, and a gear is connected to the output shaft of the motor 10, and the gear is meshed with the tooth surface of the extension block. With this structure, the motor 10 can drive the movable sleeve 8 to move left and right, thereby achieving unlocking or locking.

[0016] Finally, it is worth mentioning that the bolt head 2 of the present invention is semicircular, and the center of the bolt head 2 is hinged on the housing 1. During the rotation of the semicircular bolt head 2, the limiting block 3 can be kept in one position through its arc surface.

Claims

1. A shockproof safe bolt, comprising a housing (1) and a bolt head (2), characterized in that: The bolt head (2) is rotatably mounted on the housing (1); the housing (1) has a bolt outlet for allowing the bolt head (2) to come out; the bolt head (2) is connected to a torsion spring (20) for driving the bolt head (2) to return to its original position; a longitudinally movable limiting block (3) is provided in the housing (1); the limiting block (3) has a state for limiting the rotation of the bolt head (2); one end of the limiting block (3) close to the bolt head (2) has a guiding inclined surface (31); the other end of the limiting block (3) acts on the return spring (30); a transversely movable locking block (4) is provided on one side of the limiting block (3); the limiting block (3) has a locking groove (32); the locking block (4) is drivingly connected to a motor (10) for driving the locking block (4) to enter the locking groove (32).

2. The shockproof safe bolt according to claim 1, characterized in that: A connecting rod (7) is connected between the locking block (4) and the gasket (6); a long groove (11) is provided in the housing (1); the locking block (4), the connecting rod (7) and the gasket (6) are located in the long groove (11); a movable sleeve (8) is sleeved on the connecting rod (7); a first spring (70) is provided between the movable sleeve (8) and the locking block (4); a second spring (71) is provided between the movable sleeve (8) and the gasket (6); the motor (10) is transmission-connected to the movable sleeve (8); a longitudinally movable emergency part (9) is provided in the housing (1); one end of the emergency part (9) relative to the locking block (4) has an emergency part inclined surface (91); the other end of the emergency part (9) acts on the return spring (90); and the locking block (4) has a locking block inclined surface (41) opposite to the emergency part inclined surface (91).

3. The shockproof safe bolt according to claim 2, characterized in that: The movable sleeve (8) is provided with an extension block (80), the extension block (80) having a tooth surface, and the output shaft of the motor (10) is connected with a gear, the gear meshing with the tooth surface of the extension block.

4. The shockproof safe bolt according to claim 1, 2 or 3, characterized in that: The bolt head (2) is semicircular, and the center of the bolt head (2) is hinged on the housing (1).

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